SPACI score report for 3hx7 in ASTRAL 2.04:

PDB Entry: 3hx7
SPACI score: 0.22
AEROSPACI score: 0.22 (mutant; see below)

Experiment type: XRAY
Resolution: 2.85
R-factor: 0.249
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.748
WCK2 WHAT_CHECK Ramachandran: -1.893
WCK3 WHAT_CHECK Chi angles: -2.053
WCK4 WHAT_CHECK Backbone: 1.206

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOPe contain the phrase mutant. The full comment is: "automated match to d2fg4a_; complexed with ca; mutant"

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).